jokes about me

hi. my boyfriend is a youtuber and he streams quite often. on his last stream, I found something I didn’t like. see he usually makes jokes, ones I find offensive, but that’s none of my business. what is my business is the ones he makes about me.

he was streaming with a couple of his friends. this is how the convo went down.

-

“we’re gonna lose because someone had to leave”

“he went to hang out with his girlfriend”

“gross”

“dude you did that last week.”

“so? I’m not doing it now?”

“and you fucked her on her period. that’s like the pinnacle of uncool”

“okay I will admit that it was uncool, but you know what, dick needed attention”

-

so, I confronted him about this. you know what he says? “babe! it was a joke! you can tell I wasn’t being serious!”

and I just don’t know. his and his friend’s words made me uncomfortable. I mean, that’s private information. is it wrong for me to be upset?

edit: he genuinely thinks he did nothing wrong. how can I convince him he did?